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Dentro del modulo actividades cuando intento ordenar por fecha, el suite no muestra ninguna informacion solo una pagina en blanco con el mensaje:
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Uso SuiteCrm 7.8 php 7.o y Mysql 5.1

LOs logs registran ningun error. Solo cuando entro en el modulo de administracion y trato de reparar las actividades me genera el siguiente error:

[Thu Oct 26 11:37:24 2017] [error] [client 170.100.99.70] PHP Warning: DateTime::modify(): Failed to parse time string (+0 hours mins) at position 10 (m): The timezone could not be found in the database in /var/www/html/crm/modules/Administration/RepairActivities.php on line 51, referer: http://170.100.99.160/index.php?module=Administration&action=Upgrade
[Thu Oct 26 11:37:24 2017] [error] [client 170.100.99.70] PHP Fatal error: Uncaught Error: Call to a member function asDb() on boolean in /var/www/html/crm/modules/Administration/RepairActivities.php:51\nStack trace:\n#0 /var/www/html/crm/include/MVC/View/SugarView.php(761): include_once()\n#1 /var/www/html/crm/include/MVC/View/views/view.classic.php(74): SugarView->includeClassicFile(‘modules/Adminis…’)\n#2 /var/www/html/crm/include/MVC/View/SugarView.php(169): ViewClassic->display()\n#3 /var/www/html/crm/include/MVC/Controller/SugarController.php(371): SugarView->process()\n#4 /var/www/html/crm/include/MVC/Controller/SugarController.php(318): SugarController->processView()\n#5 /var/www/html/crm/include/MVC/SugarApplication.php(105): SugarController->execute()\n#6 /var/www/html/crm/index.php(52): SugarApplication->execute()\n#7 {main}\n thrown in /var/www/html/crm/modules/Administration/RepairActivities.php on line 51, referer: http://170.100.99.160/index.php?module=Administration&action=Upgrade